In a mental hospital, Bai Fumei forced me to be her boyfriend

This shows that the murderer and the victim must have known each other.

And, very familiar.

Bao Qu said: "The murderer should also know that the child will come back at any time, so he chose propofol plus diazepam to achieve the maximum effect."

"Within 10 minutes, the crime can be done."

"Now there is a problem."

"How did the murderer know when the child was going to leave?"

"Is it possible that you have been waiting nearby?"

Li Xiangbin said: "They are all in the same unit. If you look out of the window, you can see the situation downstairs."

"And you can also wait in the corridor."

"That's not a problem."

Hearing this, Bao Qu nodded: "That's true."

Residents of a unit building, who has any movement, can't hide it.

At this time, Wang Ze asked: "Is the victim a permanent resident? Or did he move in later?"

Wang Xiaotong operated the computer and said, "Let me take a look."

After a while, she replied: "The one who moved here was about two years ago, and now lives in a newly bought second-hand house."

Wang Ze: "Where did you live before?"

Wang Xiaotong said: "A community twenty kilometers away has now moved to the city center."

"Oh."

Wang Ze nodded and didn't say much.

From the suburbs to the city center, it can be regarded as an improved relocation.

It's quite normal.

Still, check it out.

Li Xiangbin looked at him and said, "Wang Ze, what's the problem?"

Wang Zedao: "He was killed just two years after moving in, it may have something to do with the motive of the murder."

"Since it is in one direction, I think it is necessary to look it up."

"For example, someone in the unit building knew the deceased two years ago."

"In this case, the suspicion is very great."

Li Xiangbin pondered for a while, and said, "How do you want to investigate?"

Wang Ze said: "How about I go to the community where the victim lived before and visit it."

Li Xiangbin nodded: "OK."

"Are you alone? Do you want Haoyu to follow you?"

Wang Ze waved his hand: "No, no, no, you have a lot of work here, after all, you are residents of thirteen households."

Li Xiangbin didn't insist, and said: "Okay, let's do this first."

"Everyone, get busy and don't miss anything during the investigation."

"Especially matters of property and affection."

The proportion of homicides caused by money and emotional reasons is still relatively large.

Therefore, the investigation should be focused.

"Yes!"

Everyone took orders, got up and left one after another, ready to start work.

At this time, Wang Ze called Bao Qu to stop.

Bao Qu turned around and walked over, saying, "What's wrong, Wang Ze."

Wang Ze said: "I want to see the results of the on-site trace inspection."

"Oh, okay."

After saying that, Bao Qu handed the document in his hand to Wang Ze and left.

Looking at Wang Ze who was flipping through the documents, Li Xiangbin wondered: "There are only the victim's fingerprints and footprints at the scene. Is there anything to check?"

Wang Ze turned to one of the pages.

This is the overall layout of all footprints on site.

Facing Li Xiangbin's inquiry, he said, "See if we can restore the situation before the incident."

The footprints at the scene represent where the victim walked before he was killed.

It's messy, but maybe something can be found.

Seeing this, Li Xiangbin didn't bother him, got up and said, "That's fine, I'll go first."

"Call me anytime if you need anything."

Without raising his head, Wang Ze said, "Goodbye, Captain Li."

.......

Chapter 47 Community Information Center

The time came to six o'clock in the afternoon.

In the conference room, only Wang Ze was alone.

He carefully read the trace inspection report of the technical team and the autopsy report that Li Xiangbin did not take away, and fell into deep thought.

The killing process, as just discussed, is already very clear.

After the victim's children left, the murderer finished the house, drugged and cut his throat.

Of course, theoretically, it is possible for the murderer to exist as a guest before the child left.

But in reality it is unlikely.

That would be tantamount to telling the police who the murderer was.

An eight-year-old child has already developed a good cognitive ability, and is no longer ignorant as a child.

"The case is not difficult."

Wang Ze whispered to himself.

Wang Xiaotong has confirmed the authenticity of the surveillance video.

Then, the murderer must be in the thirteen households in the unit building.

Who it is will have to wait for the results of the next investigation.

But now Wang Ze has a doubt in his mind.

That's why the murderer chose to strike at the victim's home.

Judging from the clues we have now.

The murderer has rich killing experience.

Mental quality is very strong.

Moreover, it has certain anti-reconnaissance skills.

How could such a person expose himself to the sight of the police?

There is surveillance at the entrance of the unit building, and it is impossible for the other party not to know.

Avoiding surveillance is the most basic anti-reconnaissance capability.

The murderer himself should know that choosing this method of killing is equivalent to telling the police: I am in the unit building, come and find me.

Is a strong self-confidence.

Or a provocation to the police?

Wang Ze couldn't figure out this question for the time being.

Maybe after catching the murderer, let the other party answer.

"Not a single footprint..."

"I don't know if Captain Li can find something like shoe covers."

The search around the perimeter has ended.

Nothing but the gloves.

However, no stranger's footprints were found at the scene, indicating that the murderer must have worn shoe covers.

Since it is not lost, it can only be hidden or destroyed.

"It's a pity that the results of the trace inspection will take time. Otherwise, a surprise inspection of all the houses in the unit building may be rewarding."

Wang Ze is also clear.

The chances of finding it are not great.

At that time, the victim probably wondered why the murderer wore shoe covers.

The community is an ordinary community, and everyone doesn't pay that much attention.

Who goes to someone else's house and brings their own shoe covers?

It's too deliberate.

Unfortunately, the victim did not feel suspicious.

Facing acquaintances, it is difficult to have a sense of crisis.

The real breakthrough, I am afraid, still needs to start with the deceased's interpersonal relationship.

As long as the motive for the murder is found.

It is almost impossible to know who the murderer is.

After thinking for a while, Wang Ze got up and left the conference room.

Outside the door, I just ran into Li Xiangbin.

Seeing Wang Ze come out, the busy Li Xiangbin stopped and said, "How is it? Did you gain anything?"

Wang Ze shook his head: "No, it's all normal."

Based on the traces left by the family of three at home, Wang Ze roughly simulated the situation before the crime in his mind.

Nothing suspicious.

Victims traveled to and from the kitchen and dining room.

Their kids should be watching TV all the time.

Then there is eating.

There was no sign of struggle or conflict of any kind.

"Ah."

Li Xiangbin nodded and said, "Are you going to the community where the victim lived?"

Wang Ze: "Yes, I will leave immediately."

Li Xiangbin: "Okay, it's been hard work, I called back and forth, and I will be reimbursed when I come back."

"By the way, the murderer put the drug in the kitchen, so he (she) should have accepted the victim's family's invitation to have lunch, right?"

Wang Ze thought for a while and said, "Maybe, there are actually many excuses."

"Like visiting the kitchen in small talk."